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SUMMARY:From rocks to RNA: Reconstructiong pathways in animal ontogeny and
  evolution - Prof Andreas Wanninger (University of Vienna)
DTSTART:20221130T130000Z
DTEND:20221130T140000Z
UID:TALK182936@talks.cam.ac.uk
CONTACT:Giacomo Gattoni
DESCRIPTION:Comparative ontogenetic studies have long been used to infer e
 volutionary pathways and animal interrelationships and have resulted in a 
 number of iconic hypotheses such as Haeckel’s biogenetic law or Hatschek
 ’s trochozoan concept. This is because most metazoans often display so-c
 alled transient characters that are lost during subsequent development and
  hence are not recognizable in the adult. However\, organisms constitute t
 he sum of their characters displayed over their entire lifetime\, and thus
  every character displayed during any stage of development belongs to an a
 nimal’s “body plan“\, irrespective of whether the character itself i
 s retained through adulthood or not. Accordingly\, ontogenetic studies may
  provide an important window into the evolutionary past of animals\, a qua
 lity they only share with findings revealed from the fossil record. With t
 he rise of molecular biology\, applications such as in situ hybridization\
 , experimental genetics\, as well as genomics\, comparative transcriptomic
 s\, and single cell RNAseq\, studies into morphogenesis can now be supplem
 ented by fine-grained molecular data in order to reveal the underlying gen
 etic mechanisms that govern animal ontogeny and evolution.\nThe present ta
 lk aims at reconstructing the evolutionary history of one of the most dive
 rse and species-rich animal phyla\, Mollusca\, by combining data from the 
 fossil record\, morphogenesis\, and evodevo including transcriptomics\, ph
 ylogenomics\, and single cell RNA seq. I will also highlight how ancient m
 olecular components and pathways have been integrated into the ontogeny of
  different metazoan taxa\, and have thereby significantly contributed to t
 he diversity of developmental modes and animal life forms on our planet.  
  \n
LOCATION:Online
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